package com.wind.logger.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import com.wind.logger.util.StringUtils;

public class CharactorEncodingFilter implements Filter {

	private String encoding = "UTF-8";

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
		String encoding = filterConfig.getInitParameter("encoding");
		if(!StringUtils.isEmpty(encoding)){
			this.encoding = encoding;
		}
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException,
			ServletException {
		response.setCharacterEncoding(encoding);
		response.setContentType("text/html; charset=" + this.encoding);
		chain.doFilter(request, response);
	}

	@Override
	public void destroy() {
	}

}
